Hi, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Skyline Luge Rotorua.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
Skyline Luge Rotorua
Valid Reviews
145 Valid Reviews
The Skyline Luge Rotorua experience has a total of 146 reviews. There are 145 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 145 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 40 |
|
28% |
| 9/10 | 47 |
|
32% |
| 8/10 | 36 |
|
25% |
| 7/10 | 17 |
|
12% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.69% Average
The raw data average (mean) for all the Skyline Luge Rotorua valid reviews is 86.69% and is based on 145 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
121 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 145 valid reviews, the experience has 121 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 121 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 31 |
|
26% |
| 9/10 | 38 |
|
31% |
| 8/10 | 34 |
|
28% |
| 7/10 | 13 |
|
11% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.12% Average
The raw data average (mean) for all the Skyline Luge Rotorua face-to-face reviews is 86.12% and is based on 121 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.15%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Christian Paaske | 7/10 | 3195 days | 96% |
| Natasha Startup | 9/10 | 3227 days | 100% |
| Andy | 9/10 | 3232 days | 100% |
| Toby | 10/10 | 3238 days | 100% |
| Micha Kuster | 10/10 | 3296 days | 95% |
| Tim | 8/10 | 3312 days | 91% |
| Jendrik | 8/10 | 3312 days | 91% |
| Alice Frater | 7/10 | 3319 days | 86% |
| Jade Williams | 10/10 | 3332 days | 91% |
| Cora | 9/10 | 3573 days | 69% |
| Lauren Dinnage | 10/10 | 3581 days | 69% |
| Mike Munzenmaier | 9/10 | 3588 days | 67% |
| Matt Irwin | 8/10 | 3591 days | 66% |
| Annalies Beard | 8/10 | 3591 days | 66% |
| Laura Schafer | 9/10 | 3599 days | 66% |
| D Davey | 10/10 | 3608 days | 66% |
| Kirsten Gehrenbeck | 6/10 | 3610 days | 56% |
| Lucile Souday | 10/10 | 3619 days | 65% |
| Lisa Kalkert | 10/10 | 3620 days | 65% |
| David | 10/10 | 3620 days | 65% |
| Philip Piel | 9/10 | 3620 days | 64% |
| Miro | 6/10 | 3620 days | 56% |
| Chiara | 9/10 | 3620 days | 64% |
| Sabine Bergen | 9/10 | 3623 days | 64% |
| Annika Locker | 10/10 | 3626 days | 65% |
| Jess | 8/10 | 3657 days | 60% |
| Lilli Erni | 9/10 | 4290 days | 4% |
| Franz Birkefeld | 9/10 | 4291 days | 4% |
| Laina Black | 7/10 | 4311 days | 2% |
| Ricky White | 9/10 | 4311 days | 2% |
| Jennifer Garner | 9/10 | 4325 days | 1% |
| Philip Donachie | 10/10 | 4328 days | 0% |
| Klaus Petersen | 7/10 | 4330 days | 0% |
| Matthew Trezise | 10/10 | 4331 days | 0% |
| Lorraine Doyle | 10/10 | 4663 days | 42% |
| Lisa Blake | 9/10 | 4783 days | 42% |
| Jenben | 10/10 | 4797 days | 42% |
| David | 7/10 | 4797 days | 39% |
| Nikita Sue | 8/10 | 5064 days | 41% |
| Darren Ronchetti | 10/10 | 5067 days | 42% |
| Asha | 9/10 | 5102 days | 42% |
| Helen & Laurence | 9/10 | 5140 days | 42% |
| kirribilliangel | 10/10 | 5224 days | 42% |
| Dave van Bergen | 9/10 | 5372 days | 42% |
| Guult Ryan | 10/10 | 5394 days | 42% |
| Claire Colquhoun | 8/10 | 5395 days | 41% |
| Andy Johnson | 10/10 | 5399 days | 42% |
| Leanne Shepherd | 8/10 | 5400 days | 41% |
| Chris White | 10/10 | 5415 days | 42% |
| Jane & Regis | 7/10 | 5424 days | 39% |
| Invictus | 8/10 | 5589 days | 41% |
| craigy | 7/10 | 5620 days | 39% |
| Rob | 8/10 | 5690 days | 41% |
| David | 7/10 | 5706 days | 39% |
| Alzbeta Czech | 10/10 | 5787 days | 42% |
| Becky | 8/10 | 5794 days | 41% |
| Amer | 9/10 | 5798 days | 42% |
| Greg Gerritz | 8/10 | 5800 days | 41% |
| Chance McGuire | 10/10 | 5801 days | 42% |
| Hailey & Fin | 8/10 | 5813 days | 41% |
| pedawrds | 10/10 | 5852 days | 42% |
| thomash | 10/10 | 5857 days | 42% |
| asiacritics | 7/10 | 5863 days | 39% |
| Bue Verrept | 8/10 | 5870 days | 41% |
| canadianislandgirl | 7/10 | 5893 days | 39% |
| Ash Sturm | 9/10 | 5893 days | 42% |
| wileyman | 9/10 | 5924 days | 42% |
| clairet | 9/10 | 5972 days | 42% |
| ToryL | 9/10 | 5985 days | 42% |
| muriellef | 7/10 | 5989 days | 39% |
| katesh | 10/10 | 6062 days | 42% |
| caroldarren | 10/10 | 6107 days | 42% |
| Jake1 | 9/10 | 6109 days | 42% |
| HanT | 8/10 | 6117 days | 41% |
| Yvanna | 8/10 | 6127 days | 41% |
| EmmaL | 8/10 | 6140 days | 41% |
| AnthonyB1 | 8/10 | 6141 days | 41% |
| kiwibrit86 | 9/10 | 6151 days | 42% |
| Matt | 10/10 | 6157 days | 42% |
| SuenSwitzerland | 9/10 | 6166 days | 42% |
| Carolyn | 9/10 | 6169 days | 42% |
| Marcus | 8/10 | 6170 days | 41% |
| Kirsty | 10/10 | 6171 days | 42% |
| Fam | 9/10 | 6176 days | 42% |
| Hayley | 8/10 | 6181 days | 41% |
| Debbie Mossman | 9/10 | 6182 days | 42% |
| Alan | 8/10 | 6186 days | 41% |
| Claire | 10/10 | 6193 days | 42% |
| Spyfox | 10/10 | 6214 days | 42% |
| Sonja | 9/10 | 6220 days | 42% |
| Tim | 8/10 | 6228 days | 41% |
| Lorri S | 8/10 | 6232 days | 41% |
| lming60 | 10/10 | 6233 days | 42% |
| melissa | 10/10 | 6233 days | 42% |
| Vincent | 9/10 | 6238 days | 42% |
| Hanna | 5/10 | 6253 days | 31% |
| Henry | 8/10 | 6275 days | 41% |
| Laura | 9/10 | 6291 days | 42% |
| Dave | 9/10 | 6298 days | 42% |
| Anna | 8/10 | 6305 days | 41% |
| S D | 9/10 | 6321 days | 42% |
| Alex Paice | 9/10 | 6332 days | 42% |
| Nikki Gray | 9/10 | 6357 days | 42% |
| Kellie Teichmann | 10/10 | 6408 days | 42% |
| L1z4rd | 9/10 | 6427 days | 42% |
| Allie61 | 10/10 | 6472 days | 42% |
| Adam Richards | 9/10 | 6487 days | 42% |
| Nick | 9/10 | 6493 days | 42% |
| Andria Davis | 9/10 | 6500 days | 42% |
| Georgina Mulligan | 9/10 | 6500 days | 42% |
| catzmagic | 9/10 | 6501 days | 42% |
| Emily Houston | 7/10 | 6504 days | 39% |
| Nancy Dol | 8/10 | 6504 days | 41% |
| John Woodrow | 9/10 | 6508 days | 42% |
| Zara | 10/10 | 6516 days | 42% |
| Ed | 6/10 | 6516 days | 36% |
| Elle | 10/10 | 6516 days | 42% |
| Issy | 7/10 | 6516 days | 39% |
| Katharina | 10/10 | 6519 days | 42% |
| Juliet | 9/10 | 6520 days | 42% |
| paulonline | 10/10 | 6522 days | 42% |
| Marc Hertogs | 7/10 | 6523 days | 39% |
| Ash McNeil | 10/10 | 6523 days | 42% |
| Warren | 8/10 | 6547 days | 41% |
| Klaus | 9/10 | 6555 days | 42% |
| Ann Westmacott | 9/10 | 6581 days | 42% |
| Neil Cooke | 8/10 | 6589 days | 41% |
| Archie Murdoch | 8/10 | 6596 days | 41% |
| Orla | 8/10 | 6597 days | 41% |
| Andy Chapman | 8/10 | 6709 days | 41% |
| JanKovar | 7/10 | 6825 days | 39% |
| Magnus | 8/10 | 6837 days | 41% |
| Lorraine | 8/10 | 6843 days | 41% |
| Dan | 9/10 | 6848 days | 42% |
| Sarah | 8/10 | 6848 days | 41% |
| Richhouse | 8/10 | 6853 days | 41% |
| Emma Gareth | 9/10 | 6859 days | 42% |
| Karen Nellist | 10/10 | 6862 days | 42% |
| beesom | 9/10 | 6873 days | 42% |
| Janne | 7/10 | 6877 days | 39% |
| Frauke | 4/10 | 6879 days | 26% |
| Dave | 10/10 | 6884 days | 42% |
| RosalindBoyes | 7/10 | 6884 days | 39% |
| Hanna | 8/10 | 6885 days | 41% |
| LisaAllen | 10/10 | 6898 days | 42% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Skyline Luge Rotorua experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.04% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 41 days. However the Skyline Luge Rotorua experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Skyline Luge Rotorua experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.98% |
| 198 | -4.00% |
| 199 | -4.02% |
| 200 | -4.04% |
| 201 | -4.06% |
| 202 | -4.08% |
| 203 | -4.10% |
| … | … |
Balancing Adjustment
2.22% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
85%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.